A sixth sense? A small patch of neurons on either side of the brain recognizes how many dots are on a screen. As more dots appear, active neurons shift to the right.
Courtesy of Ben Harvey/Utretch University
Acting as a "sender," brain researcher Rajesh Rao watches a video game and waits for the time to hit the "fire" button. But he'll only think about doing that — the impulse was carried out by someone in another building, in a recent test of brain-to-brain communication.
University of Washington
Although a flying pig doesn't exist in the real world, our brains use what we know about pigs and birds — and superheroes — to create one in our mind's eye when we hear or read those words.
This image shows a human glial cell (green) among normal mouse glial cells (red). The human cell is larger, sends out more fibers and has more connections than do mouse cells. Mice with this type of human cell implanted in their brains perform better on learning and memory tests than do typical mice.
Courtesy of Steven Goldman
Movies like The Shining frighten most of us, but some brain-damaged people feel no fear when they watch a scary film. However, an unseen threat — air with a high level of carbon dioxide — produces a surprising result.